Hi All-

I am getting an off and on "check engine" light in my 97 gmc (5.7 liter). I checked the code and it is coming up as a po175 (running rich on bank 2). I have replaced the oxygen sensors, fuel filter, checked the plugs, running premium gas, checked air filter. What else has everyone else done to fix this code? If there is a vacuum leak would the light be going on and off or would it be on constantly? Thanks for the help.:(

I hope that some of this might could help yall

http://www.google.com/search?hl=en&lr=&rls=GGLC%2CGGLC%3A1969-53%2CGGLC%3Aen&q=po175+code